Games like Let's Tidy Up! : Treasure
Games like Let's Tidy Up! : Treasure include Librarian: Tidy Up the Arcane Library!, A Little to the Left, House Flipper, DinoBones: Tidy Up the Museum, and Cellar Keeper. We matched them by the tags players give Let's Tidy Up! : Treasure on Steam (Simulation, Relaxing, Organizing, Dwarves, and Collectathon): closest matches first, and among equally close ones the better-known games.

Librarian: Tidy Up the Arcane Library!
Shared: Relaxing · Organizing · Collectathon

A Little to the Left
Shared: Relaxing · Organizing · Puzzle

House Flipper
Shared: Simulation · Relaxing · Cleaning

DinoBones: Tidy Up the Museum
Shared: Relaxing · Simulation · Organizing

Cellar Keeper
Shared: Relaxing · Organizing · Simulation

Unpacking
Shared: Relaxing · Organizing · Casual

PowerWash Simulator
Shared: Relaxing · Simulation · Casual

Whisper of the House
Shared: Relaxing · Organizing · Casual

Supermarket Chaos
Shared: Relaxing · Organizing · Collectathon

Leaf it Alone
Shared: Relaxing · Simulation · Casual

Sort Them Ducks
Shared: Simulation · Organizing · Casual

Shelves and Sorcery: Tidy Up the Enchanted Shop
Shared: Relaxing · Organizing · Collectathon

Bunker Tidy Up
Shared: Simulation · Collectathon · Casual

Cleaning Up The Puzzle Gallery
Shared: Relaxing · Organizing · Casual

Shelve the Potions!
Shared: Relaxing · Organizing · Collectathon

Megastore: Tidy Up Together
Shared: Simulation · Organizing · Casual

Too Many Toys!
Shared: Relaxing · Simulation · Organizing

House Flipper 2
Shared: Relaxing · Simulation · Casual

Tidy Up the Flower Shop
Shared: Simulation · Organizing · Relaxing

Brick by Brick: Tidy Up the Small Town!
Shared: Simulation · Casual · Organizing

Museologist: Tidy Up the Museum!
Shared: Relaxing · Simulation · Organizing

Crime Scene Cleaner
Shared: Simulation · Relaxing · First-Person

PowerWash Simulator 2
Shared: Simulation · Relaxing · Casual

Tidy Up the Halloween Shop
Shared: Simulation · Organizing · Relaxing